org.apache.hadoop.hive.ql.exec

Class MapredContext

java.lang.Object

org.apache.hadoop.hive.ql.exec.MapredContext

Direct Known Subclasses:

TezContext

public class MapredContext
extends Object

Runtime context of MapredTask providing additional information to GenericUDF

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MapredContext(boolean isMap, org.apache.hadoop.mapred.JobConf jobConf)

Method Summary

Methods

Modifier and Type	Method and Description
static void	close()
static MapredContext	get()
org.apache.hadoop.mapred.JobConf	getJobConf() Returns JobConf.
org.apache.hadoop.mapred.Reporter	getReporter() Returns Reporter, which is set right before reading the first row.
static MapredContext	init(boolean isMap, org.apache.hadoop.mapred.JobConf jobConf)
boolean	isMap() Returns whether the UDF is called from Map or Reduce task.
void	setReporter(org.apache.hadoop.mapred.Reporter reporter)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapredContext

protected MapredContext(boolean isMap,
             org.apache.hadoop.mapred.JobConf jobConf)

Method Detail

get

public static MapredContext get()

init

public static MapredContext init(boolean isMap,
                 org.apache.hadoop.mapred.JobConf jobConf)

close

public static void close()

isMap

public boolean isMap()

Returns whether the UDF is called from Map or Reduce task.

getReporter

public org.apache.hadoop.mapred.Reporter getReporter()

Returns Reporter, which is set right before reading the first row.

getJobConf

public org.apache.hadoop.mapred.JobConf getJobConf()

Returns JobConf.

setReporter

public void setReporter(org.apache.hadoop.mapred.Reporter reporter)